Enabling Virus Screening
Before you can benefit from mail screening, it must be enabled. While enabling screening, you configure screening parameters.
Mac OS X Server uses ClamAV (from www.clamav.net) to scan mail messages for viruses. If a suspected virus is found, you can deal with it several ways, described below. The virus definitions are kept up to date (if enabled) via the Internet using a process called freshclam.
To enable virus screening:
1In Server Admin, select a computer in the Servers list, then select Mail.
2Click Settings.
3Select the Filters tab.
4Select Scan Email for Viruses.
5Choose from the following to deal with junk mail messages.
ÂÂ Bounced: Sends the message back to the sender. You can optionally send a mail notification of the bounce to a mail account (probably the domain’s postmaster) and notify the intended recipient.
ÂÂ Deleted: Deletes the message without delivery. You can optionally send a mail notification to a mail account, probably the postmaster, as well as the intended recipient.
ÂÂ Redirected: Delivers the message to a designated address for further analysis.
6Choose if you want to notify the intended recipient if the message was filtered.
7Choose how often to update the virus database.
A minimum of twice a day is suggested. Some administrators choose eight times a day.
8Click Save.
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Chapter 2 Mail Service Setup
